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UBUNTU-CVE-2018-16658 Moderate

UBUNTU-CVE-2018-16658

An issue was discovered in the Linux kernel before 4.18.6. An information leak in cdrom_ioctl_drive_status in drivers/cdrom/cdrom.c could be used by local attackers to read kernel memory because a cast from unsigned long to int interferes with bounds checking. This is similar to CVE-2018-10940.

Exploit probability Not scored
Published September 7, 2018
Required by Not available
Last source change April 22, 2026

02 / AFFECTED SOFTWARE

Affected packages

Ubuntu:14.04:LTS linux

140 explicit affected versions

Ubuntu:14.04:LTS linux-aws

20 explicit affected versions

Ubuntu:14.04:LTS linux-azure

2 explicit affected versions

Ubuntu:14.04:LTS linux-lts-xenial

60 explicit affected versions

Ubuntu:16.04:LTS linux

82 explicit affected versions

Ubuntu:16.04:LTS linux-aws

41 explicit affected versions

Ubuntu:16.04:LTS linux-azure

25 explicit affected versions

Ubuntu:16.04:LTS linux-gcp

22 explicit affected versions

Ubuntu:16.04:LTS linux-hwe

42 explicit affected versions

Ubuntu:16.04:LTS linux-kvm

20 explicit affected versions

Ubuntu:16.04:LTS linux-raspi2

54 explicit affected versions

Ubuntu:16.04:LTS linux-snapdragon

52 explicit affected versions

Ubuntu:18.04:LTS linux

20 explicit affected versions

Ubuntu:18.04:LTS linux-aws

15 explicit affected versions

Ubuntu:18.04:LTS linux-azure

16 explicit affected versions

Ubuntu:18.04:LTS linux-gcp

14 explicit affected versions

Ubuntu:18.04:LTS linux-kvm

15 explicit affected versions

Ubuntu:18.04:LTS linux-oem

12 explicit affected versions

Ubuntu:18.04:LTS linux-raspi2

17 explicit affected versions

Ubuntu:20.04:LTS linux-azure-fde

26 explicit affected versions

Ubuntu:20.04:LTS linux-gke

51 explicit affected versions

Ubuntu:20.04:LTS linux-raspi2

6 explicit affected versions

Ubuntu:20.04:LTS linux-riscv

12 explicit affected versions

Ubuntu:22.04:LTS linux-intel-iot-realtime

1 explicit affected versions

Ubuntu:22.04:LTS linux-realtime

1 explicit affected versions

Ubuntu:22.04:LTS linux-riscv

23 explicit affected versions

Ubuntu:24.04:LTS linux-raspi-realtime

1 explicit affected versions

Ubuntu:Pro:FIPS:16.04:LTS linux-fips

3 explicit affected versions

03 / CONNECTIONS

Connected vulnerabilities

related USN-3822-2

04 / EVIDENCE

Source records

Open Source Vulnerabilities UBUNTU-CVE-2018-16658

An issue was discovered in the Linux kernel before 4.18.6. An information leak in cdrom_ioctl_drive_status in drivers/cdrom/cdrom.c could be used by local attackers to read kernel memory because a cast from unsigned long to int interferes with bounds checking. This is similar to CVE-2018-10940.

View original source

05 / REFERENCES

Further evidence